112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
/*
|
|
* nghttp2 - HTTP/2 C Library
|
|
*
|
|
* Copyright (c) 2014 Tatsuhiro Tsujikawa
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#include "shrpx_accept_handler.h"
|
|
|
|
#ifdef HAVE_UNISTD_H
|
|
# include <unistd.h>
|
|
#endif // HAVE_UNISTD_H
|
|
|
|
#include <cerrno>
|
|
|
|
#include "shrpx_connection_handler.h"
|
|
#include "shrpx_config.h"
|
|
#include "shrpx_log.h"
|
|
#include "util.h"
|
|
|
|
using namespace nghttp2;
|
|
|
|
namespace shrpx {
|
|
|
|
namespace {
|
|
void acceptcb(struct ev_loop *loop, ev_io *w, int revent) {
|
|
auto h = static_cast<AcceptHandler *>(w->data);
|
|
h->accept_connection();
|
|
}
|
|
} // namespace
|
|
|
|
AcceptHandler::AcceptHandler(const UpstreamAddr *faddr, ConnectionHandler *h)
|
|
: conn_hnr_(h), faddr_(faddr) {
|
|
ev_io_init(&wev_, acceptcb, faddr_->fd, EV_READ);
|
|
wev_.data = this;
|
|
ev_io_start(conn_hnr_->get_loop(), &wev_);
|
|
}
|
|
|
|
AcceptHandler::~AcceptHandler() {
|
|
ev_io_stop(conn_hnr_->get_loop(), &wev_);
|
|
close(faddr_->fd);
|
|
}
|
|
|
|
void AcceptHandler::accept_connection() {
|
|
sockaddr_union sockaddr;
|
|
socklen_t addrlen = sizeof(sockaddr);
|
|
|
|
#ifdef HAVE_ACCEPT4
|
|
auto cfd =
|
|
accept4(faddr_->fd, &sockaddr.sa, &addrlen, SOCK_NONBLOCK | SOCK_CLOEXEC);
|
|
#else // !HAVE_ACCEPT4
|
|
auto cfd = accept(faddr_->fd, &sockaddr.sa, &addrlen);
|
|
#endif // !HAVE_ACCEPT4
|
|
|
|
if (cfd == -1) {
|
|
switch (errno) {
|
|
case EINTR:
|
|
case ENETDOWN:
|
|
case EPROTO:
|
|
case ENOPROTOOPT:
|
|
case EHOSTDOWN:
|
|
#ifdef ENONET
|
|
case ENONET:
|
|
#endif // ENONET
|
|
case EHOSTUNREACH:
|
|
case EOPNOTSUPP:
|
|
case ENETUNREACH:
|
|
return;
|
|
case EMFILE:
|
|
case ENFILE:
|
|
LOG(WARN) << "acceptor: running out file descriptor; disable acceptor "
|
|
"temporarily";
|
|
conn_hnr_->sleep_acceptor(get_config()->conn.listener.timeout.sleep);
|
|
return;
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
|
|
#ifndef HAVE_ACCEPT4
|
|
util::make_socket_nonblocking(cfd);
|
|
util::make_socket_closeonexec(cfd);
|
|
#endif // !HAVE_ACCEPT4
|
|
|
|
conn_hnr_->handle_connection(cfd, &sockaddr.sa, addrlen, faddr_);
|
|
}
|
|
|
|
void AcceptHandler::enable() { ev_io_start(conn_hnr_->get_loop(), &wev_); }
|
|
|
|
void AcceptHandler::disable() { ev_io_stop(conn_hnr_->get_loop(), &wev_); }
|
|
|
|
int AcceptHandler::get_fd() const { return faddr_->fd; }
|
|
|
|
} // namespace shrpx
|